org.logicalcobwebs.proxool

类 ConnectionResetter

java.lang.Object

org.logicalcobwebs.proxool.ConnectionResetter

public class ConnectionResetter
extends Object

Responsible for resetting a Connection to its default state when it is returned to the pool. It must be initialised by the first Connection that is made (for each pool) so that we don't make any assumptions about what the default values are.

从以下版本开始:

Proxool 0.5

版本:

$Revision: 1.16 $, $Date: 2006/01/18 14:40:01 $

作者:

Bill Horsman (bill@logicalcobwebs.co.uk), $Author: billhorsman $ (current maintainer)

字段概要

字段

限定符和类型	字段和说明
protected static String	MUTATOR_PREFIX We use this to guess if we are changing a property that will need resetting
protected static boolean	triggerResetException

构造器概要

构造器

限定符	构造器和说明
protected	ConnectionResetter(org.slf4j.Logger log, String driverName) Pass in the log to use

方法概要

限定符和类型	方法和说明
protected void	initialise(Connection connection) This gets called every time we make a Connection.
protected boolean	reset(Connection connection, String id) Reset this connection to its default values.
protected static void	setTriggerResetException(boolean triggerResetException) Called by a unit test.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

MUTATOR_PREFIX

protected static final String MUTATOR_PREFIX

We use this to guess if we are changing a property that will need resetting

另请参阅:

常量字段值

triggerResetException

protected static boolean triggerResetException

另请参阅:

isTriggerResetException()

构造器详细资料

ConnectionResetter

protected ConnectionResetter(org.slf4j.Logger log,
                             String driverName)

Pass in the log to use

参数:

log - debug information sent here

方法详细资料

initialise

protected void initialise(Connection connection)

This gets called every time we make a Connection. Not that often really, so it's ok to synchronize a bit.

参数:

connection - this will be used to get all the default values

reset

protected boolean reset(Connection connection,
                        String id)

Reset this connection to its default values. If anything goes wrong, it is logged as a warning or info but it silently continues.

参数:

connection - to be reset

id - used in log messages

返回:

true if the reset was error free, or false if it encountered errors. (in which case it should probably not be reused)

setTriggerResetException

protected static void setTriggerResetException(boolean triggerResetException)

Called by a unit test.

参数:

triggerResetException - true it we should trigger a pretend exception.

另请参阅:

isTriggerResetException()